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o2 sensor wire connector


paparanger

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i have 96 4x4 ranger with 2.3l. recently i discovered the upstream o2 sensor was cut clean off on the truck side and lost the connector with it. i ordered a new connector from napa but the wires are different colors than the ones on the truck. does anyone know what color to connect to which?
 


Earl43P

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http://www.oldfuelinjection.com/?p=31 scroll to bottom for connector.

O is 12v in Start or Run
Rd/LG goes to PCM Pin 35 signal
LB/O is power from fuse HEGO
WH/BK to PCM pin 95 HEGO ground


All that ^ is from 2000 EVTM, all I have to refer to.
 

paparanger

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sorry it took me so long to respond. if you are looking at the connector the colors are top left-green/red, top right-black/white, bottom left-peach, bottom right-black. the colors on the wire harness on truck side are red/white, orange, blue/orange, blue. i think the blue wire is blue possibly gray, they are faded. thanks
 
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Tominator

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Connections of the O2 can differ greatly from application to application. There are no diagrams or schematics that offer a universal answer to the question. In fact the improper wiring of the O2 sensor could fry the ECM. Careful here!
 

paparanger

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the link didnt help because it doesnt tell me the colors on the wire harness on the truck side, but thanks anyways. Guess i will just take it to ford and see if one of their mechanics can help me figure it out.
 

paparanger

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Alright guys i got it figured out. I went to ford dealership and a mechanic found the wire diagram after some major searching. Got it hooked back up and seems to be running good so far. I will try to post picture of diagram if i can get it figured out.
 
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